Kuja Dosha, Mangal Dosha - impacting harmony in marriage

What is Kuja Dosha

In traditional Jyotisha interpretation,"Kuja Dosha" indicates marital stress due to excess warrior energy in the character of a partner

Mars in

1st, 4th, 7th, 8th or 12th bereft of conjunction or aspect of a benefic - loss of husband

- Brihat Parasara Hora SL 48, Chap 80, SL 48

Mars or Saturn in these same houses - loss of husband

In a Man's chart  - loss of wife

Mars in

2nd, 12th, 7th, 4th or 8th - loss of spouse

Jataka Parijata Chap XIV - SI.34

It has to be assessed from three ascendants

From Ascendant

From Moon 
From Venus 

Kuja Dosha is very common:

About 30% of all nativities have Kuja occupying bhava 1, 4, 7, or 12.

• If bhava-2 and bhava-8 are included are included as causes of Kuja Dosha, 50% of all nativities will display the Kuja Dosha.

Brief descriptions of Kuja's effect only in reference to Kuja Dosha (copied from Barbara P)

Mangala in Bhava 1

Mangala produces Movement

• The mangalika personality needs space for moving.
• If the freedom to move without restrictions is granted by BOTH the partner (7) AND the in-laws (8) then Mangala-dosha is rarely a problem.
• Mangala-1 needs a modern marriage partner free of the old (Shani) cultural expectations and traditional social restrictions that historically restrained individual movement. In particular the in-laws must be respectful of innovative, initiating, and competitive features of the social personality.

Mangala in Bhava 2

• potentially harsh speech. Kuja-2 in 8th from yuvati-sthana may threaten to leave the union if restrictions are imposed upon natural free movements.

Mangala in Bhava 4

• Often Mangala-4 is raised in a home culture which allows or even celebrates a certain amount of domestic squabbling. There may have been ongoing verbal war or 'cold-war' between the parents or possibly the caretakers had a physically responsive (spanking, hitting) method of upbringing the children. 
• In adulthood, these behaviors may be replicated. Frequent bhava moves, renovation and construction projects, or conflict in family home. Mangala 4th Drishti upon kalatra-sthana = fierce.

Mangala in Bhava 7

• Tends to be vigorously active and perhaps dominating in relationship; career is a very important outlet for this fleshly muscular dynamic energy therefore the native is greatly recommended to maintain a public career throughout life. (Kuja drishti to karma bhava) .

Mangala in Bhava 8

• An indicate an early death of the mate; makes native accident-prone too.

Mangala in Bhava 12

• hidden passions and potential for deeply repressed anger = covert (12) actions (Kuja) which originate (Kuja) in the imagination and express an agenda of animosity or distrust emerging from the marriage (6th from 7th) .
• Said to produce the most harmful effect upon the daily diplomacy needed in marriage, because the uprising energy wells up from the subconscious (12) and is often not expected or understood.

Mangala in Rashi

Kuja Dosha expression for Mangala in Rashi of Budha can be verbally aggressive. 

• Mangala-Kanya tends toward verbal attacks using sarcastic and critical language. The barbs are hurtful although the factual content is often painfully accurate. 
• In Mithuna, conversationally invasive Kuja may be a compulsive talker.

Kuja Dosha expression for Mangala in swakshetra pursues the goal as the huntsman and the deep miner: muscular and penetrating, with a burning instinct to Win. 

• In Mesha, physically responsive and self-referential; 
• In scorpio, psychologically aggressive and controlling.

Kuja Dosha expression for Mangala in Karkata * is emotionally passive-aggressive. 

• Often compulsively manipulative, trying to sneak, trick, defraud, or get away with something. This is the most difficult rashi for Kuja. If in Azlesa in bhava-4, the native was manipulated by an unstable mother in early childhood, and is typically unable to sustain a non-manipulative adult relationship.

Kuja Dosha expression for Mangala in Rashi of Shani * = a social rule-enforcer. 

• Makara represents the"rules of the jungle" One may become a captain of industry but treats one's spouse like an employee, seeking business objectives for the marriage * primarily, increasing one's social rank through spousal support *; in Kumbha, "rules of the assembly. Kuja sees the spouse as one friend among many; may interpret fidelity as a group experience.

Kuja Dosha expression for Mangala in Rashi of Zukra * instinctively seeks a physical and social basis for relationships, but may drive too aggressively toward sensual experience and compulsive re-engineering of new agreements. May not be able to leave well enough alone.

Kuja Dosha expression for Mangala in Rashi of Brihaspati * enforced knowledge. 

• One may act generously and inclusively, but only in the environments wherein others follow one's own doctrine.

Kuja Dosha expression for Mangala in Rashi of Surya *Simha* aggressively promotes one's the integrity of one's own reasoning.

•  the native will fight for recognition, and fight to assert that one's actions are morally right.

Kuja Dosha expression for Kuja-yuti-Rahu or Mangala-yuti-Ketu

• rashi-and-bhava characteristics become strongly amplified

From Ganesha

• Some astrologers believe that Mars becomes powerless after an individual completes 28 years. That's why some astrologers ask to wait till the completion of 28th year of the person to marry. But logically it's not acceptable. Mars will show its effect in its period.
• The best way to reduce the Mars Dosha is to match the Horoscope of both the partners. Mars in the same position can reduce the Dosha but cannot eliminate it entirely.
• Most of the time it is seen that if a boy is having Mangal Dosha and girl is also having Mangal Dosha in her Horoscope then the cancellation of Mangal Dosha is judged without consideration of the Houses in which Mars is present. But actually it is observed that only presence of Mangal Dosha in both the Horoscopes would not reduce the effect of Mangal Dosha in both Horoscopes. Mars should be in the same House of both the partners. Example: If a boy has Mars in his 4th House then girl should also have the Mars in her 4th House. The effect of Mars is different in different Houses and in different Signs.
• Mars in the first House makes one bold, aggressive and dominating. The person would be short tempered. He would have nature of rising over critical periods with tensions. Rash tendency is commonly seen among the persons having Mars in their first House.
• Mars in the 2nd House gives sharp tongue. The person may not have control over his tongue and the condition may worsen if he is in anger. He may speak at any extent without consideration, which may lead him to loss financially and socially. Mars aspects the 8th House from here so it also affects the family and age of spouse.
• 4th House is the House of comforts and happiness. Besides reducing the factors of the 4th House, the Mars also reduces happiness in marital relation, as it aspects the 7th House by its fourth aspect. It causes unrest in the domestic happiness. It may evoke jealousy among brothers/sisters, which may be due to wife/husband.
• In the 7th House, the presence of Mars is worse than its aspect. It gives violence in marital life. There would be mismatch in emotional and sexual needs of the partners. In some cases it may also cause intercaste marriage.
• Mars in the 8th House shows short life of the spouse. Since it's the family of husband so it may show disturbance in the family of spouse. It will reduce the happiness of the girl in her in laws' house. Afflicted Mars shows the extravagant partner. 8th House is the House of hidden matters. Mars in the 8th House shows the involvement of the spouse in hidden matters, when it surfaces, may create troubles.
• 12th House is the House for losses and bed pleasures. In marital life the partner may not be compatible with each other in this respect, causing disharmony between them.
• According to some astrologers exalted Mars or Mars in its own House or a benefic Mars does not produce any Mars Dosha, but in fact it does not happen - Mars will show its effect even then. Strength of the Mars should be considered while observing Mars Dosha.
• As it is said earlier that out of the 12 Houses, if Mars is present in 6 Houses then it is Mars Dosha, so you can find many people suffering with this Dosha. It is not possible that Mars would affect every person in the same way. Moreover, people think that Mars Dosha means untimely and accidental death of the partner. But it never happens in all the cases unless Mars is afflicted.
• Proper matching of the Horoscopes of the boy and the girl respectively reduces the effect of Mars in their married lives. It would not cancel the violent effect of Mars completely, but may reduce its effect to some extent. If Venus and Moon are in the 2nd House or even one of them is present in the 2nd House then also it is said that the effect of Mars is reduced to some extent. But actually it is seen that this factor does not count in every case. Aspect of Jupiter on Mars on the 7th House. Jupiter is planet of wisdom and righteousness. So it may reduce to an extent that the problem may persist in the life, but the matter would remain in the four walls of the house. If there were more than two afflictions then Jupiter would also prove not to be supportive to that extent.
• It is also said that if Saturn is present in the House of the partner's Horoscope where Mars is present then also it reduces the Mars Dosha. But actually it is also to less extent.
• If Rahu and Mars are conjunct.
• If Mars is the owner of the same House i.e. If Mars is placed in Aries or Scorpio Ascendant or if Mars is placed in the Signs of Taurus or Cancer in the 7th House.